TERMIUM Plus®

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CAPACITE AIR [1 record]

Record 1 2004-10-22

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Soil Science
  • Soil Mechanics (Engineering)
DEF

Volume of large pores in the soil.

OBS

air porosity. Usually, this portion is made up of large pores, that is those drained by a tension of less than about 100 cm of water.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Science du sol
  • Mécanique des sols
DEF

Volume des grands espaces lacunaires du sol ne retenant pas l'eau par capillarité.

CONT

La macroporosité correspond aux pores d'un diamètre supérieur à dix micromètres environ : elle joue un rôle essentiel sur les possibilités de drainage et l'aération du sol.

OBS

Généralement, ce volume est formé de pores grossiers, c'est-à-dire ceux dont la tension est inférieure à environ 100 cm (39,4 po) d'eau.

OBS

En hydraulique agricole et en hydrogéologie, la macroporosité est appelée porosité de drainage.

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Ciencia del suelo
  • Mecánica del suelo
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